In terms of information density, it is pretty slick. Listening to it on a less-than-great set of laptop speakers in a not-quiet environment, it was nearly impossible to make our the words.

My advice: you are innovating in the speaking/presentation style, and that is pretty slick; if you care about it, bring it to the forefront by lowering the music level by half. If you don't care about the voice enough to put it far in front of the music, put the words on the screen so people can just mute it and read.